#Bitcoin Battle: Unlock Your Mind & Win 10 USDT for the First Solver

Alice, Bob and Charlie are cryptocurrency enthusiasts who are involved in a cryptocurrency exchange. Initially, Alice has 5 $BTC , Bob has 7 BTC, and Charlie has 9 BTC. They decide to make some transactions as follows:

1. Alice sends 2 BTC to Bob.
2. Bob mines an additional 3 BTC, then sends 4 BTC to Charlie.
3. Charlie decides to reward Alice for her initial generosity by sending her 3 BTC.

Question:
How many BTC will each participant end up with after all transactions and mining?

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